This Island Earth (1955)

http://www.dailymotion.com/video/xgkf2m

Based on the 1952 novel by Raymond F. Jones, THIS ISLAND EARTH is a much-loved and influential classic sci-fi movie starring Rex Reason, Jeff Morrow and Faith Domergue. The planet Metaluna is at war with the evil Zagons, so they send their man Exeter (Jeff Morrow) to Earth to get some uranium for their weapons. Meanwhile, Dr. Cal Meacham (Rex Reason) orders some electronic components but gets some strange parts instead, plus plans to build a device called an Interocitor. When this machine is turned on, Exeter appears on the screen and recruits Meacham to his cause against the Zagon menace.He takes Meacham and his girlfriend Ruth back to Metaluna,where things are looking bad for the home side.A big-headed monstrosity called the Mut-Ant lurks in the corridors of the Metalunan city, adding to the general confusion.It turns out, however, that the Metalunans have a hidden agenda, and Exeter must betray his home planet in order to save the Earth. This film is packed with great ideas and special effects for the time, despite the lockjaw performances and wooden dialog! Sit back and enjoy a big chunk of Cold War era scaremongery, but mind the Mut-Ant doesn't get you! More alien antics with Sneaky Elephant SOON!